Big sun suns in 1.3M tank possible?

Just wanted to get ur opinions on running 2*12000 sun suns in a 130*70W*55 tank. Have a seio controller for them as well set to its minimum setting of changing sides every 15 seconds. Would this be ok? Tank will be sps dominated and BB. It would be ideal if it could be set like a vortech or tunze to pulse but going from side to side every 15 seconds?

Your thoughts?

"Remember, it's a hobby and if it is not fun, or is a cause for worry, or if I can't afford it, it goes in the garbage. but one thing I will never lose any sleep over is a fish tank." Paul B

Also when they age, the caging will break and possibly the shaft when its time to clean them. But for the price u et what u pay for...if cost is an issue then go for it, but really would rather invest in Tunze or Vortech.